Light bulb



FIG. 1 is a front, perspective view of the first embodiment of a light bulb showing our new design;

FIG. 2 is a front view of the first embodiment of the light bulb;

FIG. 3 is a rear view of the first embodiment of the light bulb;

FIG. 4 is a left side view of the first embodiment of the light bulb;

FIG. 5 is a right side view of the first embodiment of the light bulb;

FIG. 6 is a top plan view of the first embodiment of the light bulb;

FIG. 7 is a bottom plan view of the first embodiment of the light bulb;

FIG. 8 is a front, perspective view of the second embodiment of a light bulb showing our new design;

FIG. 9 is a front view of the second embodiment of the light bulb;

FIG. 10 is a rear view of the second embodiment of the light bulb;

FIG. 11 is a left view of the second embodiment of the light bulb;

FIG. 12 is a right view of the second embodiment of the light bulb;

FIG. 13 is a top plan view of the second embodiment of the light bulb; and,

FIG. 14 is a bottom plan view of the second embodiment of the light bulb.

The broken lines in the drawing depict portions of the light bulb and form no part of the claimed design. 

CLAIM The ornamental design for a light bulb, as shown and described. 